And you may never know the answer. Roses just do not stay in commerce very long. They sale them for a couple of years and then they are off to the next years popular colors, fragrances, styles. It's sad really, because so many wonderful roses have came down the pike over the years, but very few have remained in commerce for years, and years, and years. If you have a local rose society that has their own rose beds, especially if their gardens have been around for a few years, you might go look through there gardens, because if you did find it there, I bet you would still find it labeled. You may have already tried that too, but just a thought :)
alan